Fungalpedia – Note 527, Neocatenulostroma
Neocatenulostroma Quaedvl. & Crous
Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Ascomata.
Index Fungorum, Facesoffungi; MycoBank, GenBank, Fig. 1
Classification: Teratosphaeriaceae, Mycosphaerellales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi.
Based on morphological and DNA sequence analyses, Quaedvlieg et al. (2014) introduced Neocatenulostroma within Teratosphaeriaceae in Mycosphaerellales with the type species Neocatenulostroma microsporum. Neocatenulostroma comprises species that are either plant pathogenic (N. abietis and N. microsporum) or found on rocks (N. germanicum). Although N. abietis was initially regarded as plant pathogenic, it has subsequently been discovered in various substrates, frequently appearing as either a saprobe or endophyte in pine needles (Quaedvlieg et al. 2014). This genus includes endophytic, plant pathogenic, and saprobic taxa (Quaedvlieg et al. 2014). Neocatenulostroma sexual morph characterized by immersed mycelium, immersed, with small or no papilla and amphigenous ascomata, sessile, bitunicate and narrowing to a rounded apex asci, with obtuse apices, broadly fusiform, with or without a mucilaginous sheath ascospores, and for the asexual morph characterized with sporodochial colonies, macronematous conidiophores, irregularly cylindrical conidiogenous cells, irregularly branched conidia with transverse, variously shaped, longitudinal or oblique septa, from cylindrical to Y-shaped or ellipsoidal. Currently, four species (N. microsporum, N. abietis, N. castaneae and N. germanicum) have been accepted to this genus, which was collected from dead aerial branches of Castanea sativa (Fagaceae), living leaves of a Protea cynaroides, outdoor painted walls and stone in Germany, Italy, South Africa, and Sweden (Quaedvlieg et al. 2014, Phukhamsakda et al. 2022).
Type species: Neocatenulostroma microsporum (Joanne E. Taylor & Crous) Quaedvl. & Crous
Other accepted species: Species Fungorum – search Neocatenulostroma
Figure 1 –Morphology of Neocatenulostroma castaneae. a Ascomata scattered on the surface of Castanea sativa. b Section through ascoma. c Ostiolar canal. d Peridium. e-f Asci. h-j Ascospores. k, l Germinated ascospores. n, o Appressorial penetration pegs produced at germination. p Appressorial pegs produced in culture. Scale bars: b = 100 μm, c–g = 20 μm, h–j = 5 μm, k, m–p = 10 μm. Redrawn from Phukhamsakda et al. (2022).
References
Entry by
Zhang X, Excellence Center of Microbial Diversity and Sustainable Utilization, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, China
(Edited by Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)
Published online 9 December 2024